ウェールズに諺があります。

In Wales we have a proverb.

諺に、覆水盆に返らずと言う。

The proverb says that what is done cannot be undone.

諺にある通り「嘘も方便」だ。

As the proverb goes, "The end justifies the means."

諺にもある通り「虎穴に入らずんば虎子を得ず」だ。

As the saying goes, "Nothing ventured, nothing gained."